542 



THE POPULAR SCIENCE MONTHLY 



of being the easiest working and least easily injured, by " getting 

 out of line," of all known forms of engines. 



The British and Continental engineers also still retain the paddle- 

 wheel in some of the steamers plying in their narrower and more 



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closely-crowded rivers and harbors, in consequence of the greater 

 facility which it gives for manoeuvring. 



107. The magnitude of our modern steamships excites the wonder 

 and admiration of even the people of our own time. There is certain- 

 ly no ci*eation of art that can be grander in appearance than a trans- 

 atlantic steamer, a hundred and fifty yards in length, and weighing, 



